Abstract
The oxidation behavior of U-10 at% Zr alloy was studied using an X-Ray Diffractometer (XRD) and a thermogravimetric analyzer in the temperature range from 300 to 500 ‡C in air. From XRD, Infrared Spectroscopy (IR) and chemical analysis studies it was found that U-Zr alloy after complete oxidation was converted to U3O8 and ZrO2 broken into several pieces of thin plates and some blocks. From the slope value (l/n=0.562-0.872) of the log-log plots of the weight gain against time, the oxidation kinetics was analyzed by a paralinear equation. The activation energy of 20 % conversion of U-Zr alloy to U3O8 and ZrO2 was 57.02 kJ/mol and the oxidation rate per unit time and area was obtained to be :
, where w, t and T are weight gain, time and temperature, respectively.
Article PDF
Avoid common mistakes on your manuscript.
References
Antill, J.E. and Peakall, K.A., “Oxidation of Uranium Alloys in Carbon Dioxide and Air”,J. Less-Common Metals,3, 239 (1961).
Aronson, S., Roof, R. B. Jr. and Belle, J., “Kinetic Study of the Oxidation of Uranium Dioxide”,J. Chem. Phy.,27, 137 (1957).
Bae, K.K., Kim, B.G., Lee, Y.W., Yang, M.S. and Park, H. S., “Oxidation Behavior of Unirradiated UO2 Pellets”,J. Nucl. Mater.,209, 274 (1994).
Baker, L. and Bingle, J. D., “The Kinetics of Oxidation of Uranium Between 300 and 625 ‡C”,J. Nucl. Mater.,20, 11 (1966).
Barnartt, S., Charles, R. G. and Gulbransen, E.A., “Oxidation of 50 Weight Per Cent Uranium-Zirconium Alloy”,J. Electrochem. Soc.,104, 218 (1957).
Bennett, M. J. and Myatt, B. L., “The Effect of the Aluminium Content of Uranium upon Its Oxidation Behavior in Carbon Dioxide and Air”,J. Nucl. Mater.,66, 37 (1977).
Bennett, M. J., Myatt, B. L. and Antill, J. E, “The Oxidation Behavior of Highly Irradiated Uranium in Dry Carbon Dioxide at 375-500 ‡C and in Dry Air 200-300 ‡C”,J. Nucl. Mater.,50, 2 (1974).
Bennett, M.J., Myatt, B.L., Silvester, D.R.V. and Antill, J. E., “The Oxidation Behavior of Uranium in Air at 50–300 ‡C,J. Nucl. Mater.,57, 221 (1975).
Donald, P. T., Wood, D. and Dudos, A. M., “The Early Stages of U3O8 Formation on Unirradiated CANDU UO2 Fuel Oxidized in Air at 200-300 ‡C”,J. Nucl. Mater.,189, 116 (1992).
Greenholt, C. J. and Weirick, L. J., “The Oxidation of Uranium-0.75 wt% Titanium in Environments Containing Oxygen and/or Water Vapor at 140 ‡C”,J. Nucl. Mater.,144, 110 (1987).
Kang, K. H., Hwang, S. Y. and Kim, K. J., “Oxidation Behavior of UO2 in Air at 300-550 ‡C,J. Korean Energy Eng’g,6(2), 198 (1997).
Kang, K. H., Kim, K. S., Kim, K. J., Seo, Y. C. and Park, Y. M., “Oxidation Behavior of U3Si (3.9 wt% Si) in Air at 250-400‡C”,J. Nucl. Mater.,228, 220 (1996).
Leibowitz, L., Schnizlein, J. G., Bingle, J. D. and Vogel, R. C., “The Kinetics of Oxidation of Uranium Between 125 and 250‡C”,J. Electrochem. Soc.,108(12), 1155 (1961a).
Leibowitz, L., Schnizlein, J. G., Mishler, L. W. and Vogel, R. C., “A Microscopic Study of Oxide Films on Uranium”,J. Electrochem. Soc.,108(12), 1153 (1961b).
Loriers, J., “Oxidation of Metallic Uranium”, AEC Research and Development Report HW-61493(1959).
Matsui, T. and Yamada, T., “Oxidation of U-10 at% Zr Alloy in Air 432-1,028 K”, /.Nucl. Mater.,210, 172 (1994).
Matsui, T., Yamada, T., Ikai, Y. and Naito, K., “Oxidation of U-20 at% Zr Alloy in Air 423-1,063 K”,J. Nucl. Mater.,199, 143 (1993).
Rama Rao, G. A., Venugopal, V. and Sood, D. D., “Oxidation Studies U-Zr Alloys”,J. Nucl. Mater.,209, 161 (1994).
Ritchie, A. G., “A Review of the Rates of Reaction of Uranium with Oxygen and Water Vapor at Temperatures up to 300 ‡C”,J. Nucl. Mater.,102, 170 (1981).
Scott, K. T. and Harrison, K. T., “Some Studies of the Oxidation of Uranium Dioxide”,J. Nucl. Mater.,8, 307 (1963).
You, G.S., Kim, K.S., Min, D.K., Ro, S.G. and Kim, E. K., “Oxidation Behavior of UO2 in Air”,J. Korea Nuclear Society,27, 67 (1995).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kang, K.H., Shin, H.K., Kim, K.J. et al. Oxidation behavior of U-10 at% Zr alloy in air at 300–500 ‡c. Korean J. Chem. Eng. 15, 439–444 (1998). https://doi.org/10.1007/BF02697136
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02697136